Tar extractor



May 19, 1936- w. R. PENDRY 2,041,016

TAR EXTRACTOR lFiled Nov. 27, 1955 2 sheets-sheet 1 INVENTOR. W/LL //M E. PEA/DEU BY' M Y /1//5 A TTORNEYS.

May T9, 1936 w. l?. PENDRY 2,041,016

TAR EXTRACTOR Filed Nov. 27, 1933. 2 sheets-Sheet 2 6. fgz A' Figa?. i 1.@.3

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WML/4M E. REND/feg,

Patented May 19, 17936 UNHTEDA STATES PATENT OFFICE TAR EXTRACTORY William R. Pendry, ShakerHei'ghts; Ohio" ApplicationV November 27, 1933, Serial No. 700,000'

4 Claims. (C1. 183-96) This invention relates to tar extractors of the is positioned over each of these pipes 3v by* a spider type having a casing in which there is an up- 'i which is manipulated through a'connecting-rod standing pipe over whicha bell is positioned, the 8, walking beam 9 and controlling rod IUE, the gases from which the tar is to be extracted enterlatter being operatedV by a hand-wheel I I withy 5 ing the casing through this pipe, and this bell, which it is in screw-threaded engagement.;- A which is of a perforate construction, functioning liquid i2, such as tar, is maintained in the casing to extract the tar. The casing has asuitable out- I for the purpose of forming? a sealgbe'tween the let and is filled with a liquid forming a seal bebottom portions of the bells 6 and the sides of tween the pipe and the bell. Thistype is called the pipes 3. The level of this liquid may be ad- 10 a Pelouze and Audouin tar extractor. justed by decanter cocks I3. 10

The above mentioned bell is ordinarily a suit- The operation of the above describedf tar-ex:F ably shaped frame having ilat, open sides which tractor is pretty well known. The'v gases flow up mount tar-extracting plate-packs. Since it is through the pipes 3, filter through the ybells 6 desirable to use two or more of theseplate-packs and leave the casing I by the outlet 2. The bells -A in series, this frame is usually constructed from are raised and lowered, and the liquid'level of 15 riveted parts forming double end-structures, one the seal is adjusted, according to thev volumeiorV Within the other. Each of these structuresmoun'ts tar content of the gases beinglcleaned. The bells one of the plate-packs, the latter" each compris- 6 operate on the principle thatfimpingement ing two plates having respectively offset perioraagainst a ilat surface of gases carrying dispersed,

tions and separated by a number ofv flatbars, suspended tar, will cause condensation'and c ol- 20 these parts all being riveted together to'form lection of this tar. Discoveryl of this principle awhole. is generally attributed to Pelouze and Audouin,

It follows that the repair or" cleaning of this this type of extractor being therefore distin-V bell is a tedious operationV requiring" skilled labor, guished by their names.

and cannot be advantageously performed in thel As previously mentioned', the-present invention 25 ordinary machine shop of av bi1-product coke is concerned withimprovingthe belles, thezforeworks, it being understood thatextractors ofthe going'being to disclose their use to an uninformed type under discussion are customarilyfused-as theV readerv Sometimes a singlelarge bell'fisjused.;- final step in the removal of tar from coke-oven: but Oftener a, number are used in the man-ner gases. described;r 30

One of the objects of the present inventor is t0 Each of the bells 6 includes a frame I4 proimprove the construction of such a tar-extractor vding open ends and sides respectively bounded bell, Simplicity and easy Cleaning and repair beby anges I5 and I6 having spaced holes lia and ine the primary aims. Other objects may be inlsa. A closing plate l1 is constructed for appliferred. cation to either of the ends of the frame I4 and 35 An example of a tar-extractor bell constructed has holes I1a arranged to register with the holes according to the present invention is illustrated I5a in the flanges I5 bounding these ends. This by the aCCOmDaIlyng drawings, the VaTOllS fgclosing plate also has central holes I'Ib for conures being as follows: nection with the positioning device of a tar-ex- 40 Figure 1 is a sectional View of a tar-extractor. tractor by bolts, for instance, with the spider 1 of 40 Figure 2 is a cross-section from the line II-II the one illustrated, This closing plate may be in Figure 1. fastened by bolts I5b to either end of the frame I4,

Figure 3 is a broken sectional view of one of the so as te close the same,

bells. A plurality of tar-extracting plate-packs I8 Figure 4 is a top View of Figure 3. are constructed for application to the sides of 45 Figure 5 is an enlarged cross-section taken on the frame I4, and have holes I8a arranged for the line V-V in Figure 3. registration with the holes llia in the flanges I6 Figures 6 through 9 are details of one of the by bolts I9 which pass through the holes |89' and plate-packs- Isa. Since it is usually desirable to use at least A Pelouze and Audouin tar-extractor is illustwo of the plate-packs in series, two or more of 50 trated by the rst figures. It includes a casing I the same may be fastened to the flanges I6 by the Y having an outlet 2 and provided with a plurality bolts I9, separators 20, identical with separators of upstanding pipes 3. The gases from which 22 except ordinarily several times thicker, being the tar is to be extracted are fed to these pipes used between the respective packs to secure their r by a manifold 4 supplied by an inlet 5. A bell 6 proper separation. 55

The advantages of the bell as so Vfar described include the ability to reverse it should its portion being used become leaky. That is to say,V the plate I1 maybe unbolted fromV the used end of the bell, Vthe latter reversed and the plate rebolted to its other end. This end will be practically new, since it has been immersed in the liquid seal during its prior use. Another advantage is the ability to use any number or" theVplate-packs inY series. This may be done simply by the use of suiiciently long bolts and a sufcient number 'of Spacers.

'Ihe plate-packs I 8 are diiierent from thoseY usually used. They each consist of three similarly sized plates 2|, 22 and 23, having mutually registering Vholes forming the holes I8a previously mentioned. The other two of these plates, 2| and 23, have the usual mutually offsetV perforations. The inner one of these plates, 22, has openings permitting the flow of fluid through all of the plates byV way of the oiset perforationsmentioned. This plate 22 is integral throughout and functions as a separator for the otherY two, it b'eing understood that the plate V22 Vis in the form of an open frame so as to permit free uid passage. Y Y

Y Since it is not desirable to depend. on the bolts i9 to interfasten the respective plates, the latter may all have mutually registering, centrally positioned bolt holes 24, and bolts '25 (Figures 3 and 5)V may be passed through these holes to clamp YVthe plates together. When the plates are used inY multiple as illustrated, these bolts may pass through two of the packs and the separatorsV 20 used to separate the respective packs. Thus, a unitary installationresults which may be disv mounted from the frame as a whole byV the removal of the boltsV I9.

A heavy binder plate 21, which is shaped similarlyY tothe plate-packs and has similarly positioned holes I8b, may be applied over the bolts Y llforY the purpose of strengthening the bell. as a whole. .Y Y

Among the advantages Aof the new plate-packs are the ease of installingY and removing them when installed in series,`and the ability to separatethe individual plates for cleaning'purposes,

Without necessitating the use of skilled labor.

I'Vclaim: Y .1. A Vtar-extractor bell providing open. ends,

andincluding in combination a closing plate con- Y structed to t either of said ends and adapted for for fastening said packs to the sides of said frame,

and separators constructedfor Yapplication between a plurality of said packs when the same are applied in'multiple to any one of the sides of said frame.

3. A tar extractor bell including the combina-V tion of a frame providing open ends and sides, a closing member constructed for application to either of the ends of said frame, tar-extracting plate-packs constructed for application tothe sides of said frame, releasable means for fasten-v ing said member to either of the ends ofsaid frame, and means for fastening said packs to the sides of said frame.

` 4. A tar-extractor bell including the combina-Y tion of a, frame providing lopen'ends and sides respectively bounded by flanges having spaced holes, a closing plate constructed for application to either of said ends andhaving holes arranged to registerwithk the holes in the anges boundingY these ends, said closing plate being adapted for connection with the positioning device of atarextracton a plurality of tar-extracting plate-V packs constructed for application to said sides and having holes arranged :t'orregistrationV WithV Y the holes in the flanges bounding these sides, bolts for fastening said closing plate to the ilanges bounding said ends and said plate-packs to the lianges bounding said sides when inserted through the V`respectively registered holes in each, and separators aperturedto receive the bolts when inserted through the holes in said plate-packs and the flanges bounding said open sides, said separators being for the purpose of separating said plate-packs when applied in multiple to any one of said sides.

WILLIAM R. PENDRY;V 

